Open Source JavaScript Software Development Software - Page 17
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JavaScript Software Development Software
View 5962 business solutionsBrowse free open source JavaScript Software Development Software and projects below. Use the toggles on the left to filter open source JavaScript Software Development Software by OS, license, language, programming language, and project status.
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Learning Prompt
Free prompt engineering online course
Learning-Prompt is a curated repository of prompts, techniques, and instructional patterns designed to help people construct better prompts for AI systems, including generation, reasoning, and debugging tasks. It collects examples of effective prompt formats, chains of thought, strategy scaffolds, and comparative methods that help yield consistent, high-quality results. The project also includes meta-guidance: reflections on prompt failures, tips for prompt tuning, ways to mitigate model bias or misinterpretation, and how to adapt prompts for different AI capabilities. Because prompt design is a skill under continuous iteration, the repo encourages contributions of new prompt recipes, evaluations, and domain-specific adaptations. It’s intended for educators, developers, and prompt engineers who want a living toolkit rather than static advice. Over time it serves as both a reference and playground for emergent prompt techniques. -
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LemonadeJS
LemonadeJS is a 7KB reactive JavaScript micro-library
LemonadeJS is an ultra-lightweight, reactive JavaScript micro-library that makes building dynamic user interfaces simple and intuitive by providing two-way data binding and component reactivity without any external dependencies or build steps. At roughly 5–7 KB, it works directly in the browser or with bundlers like webpack, enabling developers to create reusable, reactive UI components using pure JavaScript, JSX, or TypeScript while avoiding heavy frameworks. Its core reactivity system tracks changes to component state and efficiently updates only the affected parts of the DOM, which improves performance for both small widgets and larger applications. The library also offers powerful template syntax and lifecycle hooks so you can manage state, effects, loops, and events in a clear and expressive way while keeping your code close to native JavaScript. -
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Less.js
Less, the dynamic stylesheet language
Less (which stands for Leaner Style Sheets) is a backwards-compatible language extension for CSS. This is the official documentation for Less, the language and Less.js, the JavaScript tool that converts your Less styles to CSS styles. Because Less looks just like CSS, learning it is a breeze. Less only makes a few convenient additions to the CSS language, which is one of the reasons it can be learned so quickly. Less gives you the ability to use nesting instead of, or in combination with cascading. Arithmetical operations can operate on any number, color or variable. If it is possible, mathematical operations take units into account and convert numbers before adding, subtracting or comparing them. The result has leftmost explicitly stated unit type. If the conversion is impossible or not meaningful, units are ignored. With Less you can transform colors, manipulate strings and do maths. -
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Loki
Visual Regression Testing for Storybook
There are a few visual regression tools for the web, but most either cannot be run headless or use phantomjs which is deprecated and a browser nobody is actually using. They usually also require you to maintain fixtures. With react-native it's now possible to target multiple platforms with a single code base, but there's no single tool to test all to my knowledge. Loki aims to have easy setup, no to low maintenance cost, reproducible tests independent of which OS they are run on, runnable on CI, and support all platforms storybook does. -
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LoopBack
Build modern applications that require complex integrations
A highly extensible Node.js and TypeScript framework for building APIs and microservices. A brand new LoopBack core to deliver great extensibility and flexibility written in TypeScript/ES2017. Create powerful APIs easily with a new creation experience for defining REST API's and handling API requests/responses. A new, improved programming model with Dependency Injection and new concepts such as Components, Mixins, Repositories, etc. make this the most extensible version yet. Using OpenAPI-to-GraphQL, create a GraphQL interface for any REST API. Schemas are used to create GraphQL data definitions, and links defined in the OAS are used to create a nested structure, allowing for (deeply) nested queries. GraphQL-incompatible identifiers of your API are sanitized. For example, API parameters or data definitions with unsupported characters (e.g., -, ., ,, :, ;...) are removed. -
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Luna
Manage npm dependencies through a modern UI
Manage npm dependencies through a modern UI. npm desktop manager for handling npm dependencies. Supported platforms: OS X Windows and Linux. Luna was created with the main purpose to provide a flexible and modern UI for npm dependencies management. You can install, update and uninstall packages using a user interface built on the latest web technologies. Filter packages by name, group, and outdated. Preview package details (versions, statistics, dependencies, and more). Get notifications for missing dependencies or extraneous packages. The IO Management, Business Logic Management and Predictable Application State Management processors (middlewares) are subscribers of the application action stream. The IO Management and Business Logic Management are consumers and producers of actions. -
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MJML 4
The only framework that makes responsive-email easy
MJML is a markup language created by Mailjet and designed to reduce the pain of coding a responsive email. Its semantic syntax makes the language easy and straightforward while its rich standard components library shortens your development time and lightens your email codebase. MJML’s open-source engine takes care of translating the MJML you wrote into responsive HTML. -
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MUI Core
React components for faster and easier web development
MUI Core (formerly Material-UI) consists of React components for faster and easier web development, with options for creating your own design system or starting with Material design. MUI components work without any additional setup, and don't pollute the global scope. -
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MediaElement.js
A dependable HTML media framework
Boost your player with Chromecast, Google Analytics and more. MediaElement.js is a blazingly fast and amazingly powerful HTML5 audio and video library that creates a unified feel for media files (MP4, MP3, FLV), streaming content (HLS, M(PEG)-DASH, RTMP), and embeddable players like YouTube, Vimeo, Twitch, DailyMotion, Facebook, and SoundCloud. MediaElement.js is a set of custom Flash plugins that mimic the HTML5 MediaElement API for browsers that don't support HTML5 or don't support the media codecs you're using. Instead of using Flash as a fallback, Flash is used to make the browser seem HTML5 compliant and enable codecs like H.264 (via Flash) on all browsers. In general, MediaElement.js supports IE11+, MS Edge, Chrome, Firefox, Safari, iOS 8+ and Android 4.0+. It is strongly recommended to read the entire documentation and check the demo folder to get the most out of this package. -
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Meow
CLI app helper
Meow is a CLI helper library for Node.js that simplifies the creation of command-line applications by parsing arguments and providing a user-friendly interface. -
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Moment.js
Parse, validate, manipulate, and display dates in javascript
Moment is a JavaScript date and time library that simplifies parsing, formatting, arithmetic, and humanizing of dates. It supports many formats in input and output, internationalization (i18n), locale-based month/day names, relative time (for example, “3 days ago”), and chaining of operations (adding, subtracting, diffing). Developers often use it for calendar displays, scheduling, and manipulating times across time zones or daylight saving transitions. While it makes working with date strings convenient, moment maintains internal mutability, which has trade-offs with safety and chainability. Over time, newer alternatives with immutable and modular designs have emerged, but moment remains widely known and integrated in many legacy projects. Its comprehensive feature set and ease of use made it a standard for date-time handling in JavaScript for many years. -
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NeteaseCloudMusic API
Node.js API service
NetEase Cloud Music Node.js API service. v4.0.8 added the Vercel configuration file, which can be deployed directly under Vercel, without the need for your own server. After v3.31.0, the Node.js call is supported. The imported method is module file name inside, the returned content contains status sum body, which status is the status code, and body returned content for the request, please refer module_exampleto thetest.js. Category Popular Radio. Cloud Village Hot Reviews. Radio 24-hour program list. Radio 24-hour anchor list. The hottest anchors of the radio station. Radio anchor newcomer list. Radio Paid Boutique List. Singer's Top 50 Songs. Buy the digital album. Get the data of mv likes, forwards, and comments. Get video likes, forwards, and comments data. -
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Nock
HTTP server mocking and expectations library for Node.js
HTTP server mocking and expectations library for Node.js. Nock can be used to test modules that perform HTTP requests in isolation. For instance, if a module performs HTTP requests to a CouchDB server or makes HTTP requests to the Amazon API, you can test that module in isolation. Nock works by overriding Node's http.request function. Also, it overrides http.ClientRequest too to cover for modules that use it directly. -
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Node Thermal Printer
Node.js module for thermal printers command line printing
node-thermal-printer is a Node.js library that enables communication with thermal receipt printers using ESC/POS commands. It is designed for point-of-sale (POS) applications, allowing developers to generate receipts, barcodes, QR codes, and formatted text. -
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Node.js Code Generator
DhiWise Node.js API allows you to instantly generate secure REST APIs
Node.js code generator is a developer-centric platform to build backend CRUD APIs along with other essential features to boost developers' productivity time by twofold. Developers just need to add their schema data to reduce their work related to models into a few simple configurations. Developers can also configure platforms, routes, role access, authentication & more for their applications. Most importantly, the Node.js code generator gives developers total code ownership. The code it generates is bug-free and easily customizable -
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Office Docs PowerShell
PowerShell Reference for Office Products
This repository aggregates documentation, examples, and cmdlet references for PowerShell modules that manage Microsoft 365 and Office services. It collects guidance for admins on tasks such as Exchange Online mail flow, SharePoint site provisioning, Teams configuration, and tenant-level policy settings—often including parameter examples, common scenarios, and troubleshooting notes. The docs are structured so operators can copy/paste ready examples into their automation scripts or adapt them for bulk changes using CSV-driven loops. Because cloud management frequently involves idempotent, auditable operations, the content emphasizes safe patterns (what changes will do, UI equivalents, and rollback hints). Versioning matters here: the repository tracks changes as Microsoft updates service APIs and cmdlets, helping teams stay current and avoid deprecated workflows. -
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Omi
Front end cross-frameworks framework
Omi (pronounced /ˈomɪ/) is cross-frameworks framework base on Web Component, you can also use omio compatible IE8+ with the same grammar. One framework, Mobile & desktop & mini program. Simply download and include with <script>. Omi will be registered as a global variable. If you need to be compatible with IE8+, you can choose omio, which has almost the same API as omi, and Omi will be registered as a global variable. Omi provides the official CLI. You don't need to learn how to configure webpack, Babel or TypeScript. CLI helps you configure everything and provides various templates for different project types. Pass data through the component tree without having to pass props down manually at every level by store, auto update the view on demand. Cross frameworks(react, preact, vue, angular), components of omi are pure custom elements. Excellent compatibility(IE8+) with omio and enhanced CSS, rpx unit support base on 750 screen width. -
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OrgChart
It's a simple and direct organization chart plugin
It's a simple and direct organization chart plugin. Anytime you want a tree-like chart, you can turn to OrgChart. -
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PWA
(WIP) Universal PWA Builder
PWA is a “universal, framework-agnostic PWA builder” developed by Luke Edwards (lukeed) that aims to let developers scaffold progressive web apps with minimal friction across different view frameworks or libraries. Unlike many CLI tools that target a specific framework (React, Vue, Svelte), this project intentionally tries to remain agnostic, supporting presets for Preact, React, Vue, Svelte and even vanilla JS, while offering all the PWA boilerplate you need (service workers, manifest, offline support) right out of the box. The project is designed for speed of setup: you run pwa init, choose your preset, then pwa build or pwa watch and you get a production-ready bundle with PWA features baked in. The README emphasizes that modern bundlers (Webpack, Rollup) and ecosystem maturity finally allow a universal CLI of this kind, whereas earlier attempts weren’t practical. -
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Polymer
A Web Component library
Polymer is a lightweight Web Components library that lets you create encapsulated Web Components that work just like standard HTML elements. These elements can be used in building web applications and are reusable. Polymer can be particularly useful when building UI components. Instead of having to constantly rebuild components such as a specific navigation bar or button in different frameworks and for different projects, simply define this component once with Polymer, and you can use it again and again in your future projects. Because Polymer is built on top of the web standards-based Web Components APIs, custom HTML elements made from it are built totally from the platform up and are interoperable across frameworks. Polymer also works across all major browsers. -
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PostCSS
A tool for transforming CSS with JavaScript
PostCSS is a tool for transforming styles with JS plugins. These plugins can do a great number of things: transpile future CSS syntax, lint your CSS, support variables and mixins, and so much more. PostCSS works by taking a CSS file and providing an API to analyze and modify its rules (through its transformation into an Abstract Syntax Tree). The API can then be used by plugins to do a lot of useful things. With PostCSS, you can increase code readability by adding vendor prefixes to CSS rules; convert modern CSS so it's understood by more browsers; and avoid errors in your CSS via stylelint, a modern CSS linter. PostCSS currently has over 200 plugins, and is being used by industry leaders worldwide. -
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Primer CSS
The CSS design system that powers GitHub
Our goal is to create a system that enables us to build consistent user experiences with ease, yet with enough flexibility to support the broad spectrum of GitHub websites. This goal is embedded in our design and code decisions. Our approach to CSS is influenced by Object-Oriented CSS principles, functional CSS, and BEM architecture. Styles can be mixed and matched to achieve many different layouts, independent of their location. These styles fall into three categories. Single-purpose, immutable styles, that do one thing well. Abstracted patterns for frequently used visual styles. Primer CSS is built upon systems that form the foundation of our styles such as spacing, typography, and color. This systematic approach helps ensure our styles are consistent and interoperable with each other. The base-8 spacing scale is highly composable and works with the density of GitHub’s content. Margin and padding spacers bring consistency to vertical and horizontal rhythm. -
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Progressive Web Apps for Firefox
A tool to install, manage and use Progressive Web Apps (PWAs)
A tool to install, manage and use Progressive Web Apps (PWAs) in Mozilla Firefox. Progressive Web Apps (PWAs) are web apps that use web APIs and features along with a progressive enhancement strategy to bring a native app-like user experience to cross-platform web applications. Although Firefox supports many of Progressive Web App APIs, it does not support functionality to install them as a standalone system app with an app-like experience. This project creates a custom-modified Firefox runtime to allow websites to be installed as standalone apps and provides a console tool and browser extension to install, manage and use them. Command-line tool to install, manage and run Progressive Web Apps in Firefox. Extension to set up native programs, and install, manage and run PWAs and their profiles directly from the main Firefox browser. Isolated Firefox installation and profile(s) that stores the PWAs. -
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RESTful API Node Server Boilerplate
A boilerplate for building production-ready RESTful APIs using Node.js
A boilerplate/starter project for quickly building RESTful APIs using Node.js, Express, and Mongoose. By running a single command, you will get a production-ready Node.js app installed and fully configured on your machine. The app comes with many built-in features, such as authentication using JWT, request validation, unit and integration tests, continuous integration, docker support, API documentation, pagination, etc. The app has a utility ApiError class to which you can attach a response code and a message, and then throw it from anywhere (catchAsync will catch it). Request data is validated using Joi. Check the documentation for more details on how to write Joi validation schemas. In production mode, only info, warn, and error logs will be printed to the console. It is up to the server (or process manager) to actually read them from the console and store them in log files. -
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RFS
Automates responsive resizing
RFS is a unit resizing engine which was initially developed to resize font sizes (hence its abbreviation for Responsive Font Sizes). Nowadays RFS is capable of rescaling basically every value for any CSS property with units, like margin, padding, border radius or even box-shadow. The mechanism automatically calculates the appropriate values based on the dimensions of the browser viewport. It's available in one of your favorite preprocessors or postprocessor, Sass, Less, Stylus or PostCSS. The source files can also be downloaded manually and used in a project. This method is not recommended because you lose the ability to easily and quickly manage and update RFS as a dependency. RFS works out of the box without any configuration tweaks. Enabling the two dimensional media queries will determine the value based on the smallest side of the screen with vmin. This prevents values from changing if the device toggles between portrait and landscape mode.
